JP2004534914A5 - - Google Patents

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JP2004534914A5
JP2004534914A5 JP2003512478A JP2003512478A JP2004534914A5 JP 2004534914 A5 JP2004534914 A5 JP 2004534914A5 JP 2003512478 A JP2003512478 A JP 2003512478A JP 2003512478 A JP2003512478 A JP 2003512478A JP 2004534914 A5 JP2004534914 A5 JP 2004534914A5
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nanofiber
group
graphite
distance
catalyst
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JP2003512478A
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JP2004534914A (en
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Priority claimed from US09/902,113 external-priority patent/US20020054849A1/en
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Priority claimed from PCT/US2002/021497 external-priority patent/WO2003006726A1/en
Publication of JP2004534914A publication Critical patent/JP2004534914A/en
Publication of JP2004534914A5 publication Critical patent/JP2004534914A5/ja
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Claims (18)

ナノファイバーの縦軸に実質的に平行な実質的なグラファイト・シートからなる、実質的に結晶質のグラファイト・カーボン・ナノファイバーであって、グラファイト・シート間の距離が０．３３５〜０．６７ｎｍであり、９５％を超える結晶度を有するナノファイバー。   A substantially crystalline graphite carbon nanofiber consisting of a substantially graphite sheet substantially parallel to the longitudinal axis of the nanofiber, the distance between the graphite sheets being 0.335 to 0.67 nm Nanofibers having a crystallinity greater than 95%. 前記実質的なグラファイト・シートが、分離した非連続シートである請求項１に記載のナノファイバー。   The nanofiber of claim 1, wherein the substantially graphite sheet is a separate, discontinuous sheet. 非円筒形の多面体管状構造を形成する、連続的な実質的なグラファイト・シートを有することを特徴とする請求項１に記載のナノファイバー。   The nanofiber of claim 1 having a continuous, substantially graphite sheet that forms a non-cylindrical polyhedral tubular structure. グラファイト・シートの間の距離が、０．３３５〜０．４０ｎｍである請求項１に記載のナノファイバー。   The nanofiber according to claim 1, wherein the distance between the graphite sheets is 0.335 to 0.40 nm. ナノファイバーの少なくとも一部の端部領域が、塩基性基、酸性基、および酸素含有基からなる群から選択される官能基を含む請求項１に記載のナノファイバー。   The nanofiber according to claim 1, wherein at least a part of the end region of the nanofiber includes a functional group selected from the group consisting of a basic group, an acidic group, and an oxygen-containing group. ナノファイバーの縦軸に実質的に平行な、非連続的な実質的なグラファイト・シートからなる、実質的に結晶質のグラファイト・カーボン・ナノファイバーであって、グラファイト・シート間の距離が０．３３５〜０．６７ｎｍであり、９５％以上の結晶度を有するナノファイバー。   A substantially crystalline graphite carbon nanofiber consisting of a discontinuous substantial graphite sheet substantially parallel to the longitudinal axis of the nanofiber, wherein the distance between the graphite sheets is 0. Nanofibers having a crystallinity of 95% or more at 335 to 0.67 nm. グラファイト・シート間の距離が、０．３３５〜０．４０ｎｍである請求項６に記載のナノファイバー。   The nanofiber according to claim 6, wherein the distance between the graphite sheets is 0.335 to 0.40 nm. ナノファイバーの少なくとも一部の端部領域が、塩基性基、酸性基、および酸素含有基からなる群から選択される官能基を含む請求項６に記載のナノファイバー。   The nanofiber according to claim 6, wherein at least a part of the end region of the nanofiber includes a functional group selected from the group consisting of a basic group, an acidic group, and an oxygen-containing group. ナノファイバーの縦軸に実質的に平行な、連続的な実質的なグラファイト・シートからなり、実質的に非円筒形の多面体管状構造を有する、実質的に結晶質のグラファイト・カーボン・ナノファイバーであって、グラファイト・シート間の距離が、０．３３５〜０．６７ｎｍであり、９５％以上の結晶度を有するナノファイバー。   A substantially crystalline graphite carbon nanofiber consisting of a continuous, substantially graphite sheet substantially parallel to the longitudinal axis of the nanofiber and having a substantially non-cylindrical polyhedral tubular structure. A nanofiber having a crystallinity of 95% or more with a distance between graphite sheets of 0.335 to 0.67 nm. グラファイト・シート間の距離が、０．３３５〜０．４０ｎｍである請求項９に記載のナノファイバー。   The nanofiber according to claim 9, wherein the distance between the graphite sheets is 0.335 to 0.40 nm. ナノファイバーの少なくとも一部の端部領域が、塩基性基、酸性基、および酸素含有基からなる群から選択される官能基を含む請求項９に記載のナノファイバー。   The nanofiber according to claim 9, wherein at least a part of the end region of the nanofiber includes a functional group selected from the group consisting of a basic group, an acidic group, and an oxygen-containing group. 実質的に結晶質のグラファイト性ナノファイバーを製造する方法であって、その少なくとも一部がナノファイバーの縦軸に実質的に平行なグラファイト・シートからなり、その方法が、ＣＯ／Ｈ2混合物を、Ｆｅ粉状触媒、Ｆｅ：Ｃｕのバイメタリック粉状触媒、およびＦｅ：Ｎｉのバイメタリック粉状触媒からなる群から選択される触媒の存在下で、６２５℃〜７２５℃の温度で有効な時間反応させることを含む方法。 A method of producing a substantially crystalline graphitic nanofiber, at least a portion of which comprises a graphite sheet substantially parallel to the longitudinal axis of the nanofiber, wherein the method comprises a CO / H 2 mixture. An effective time at a temperature of 625 ° C. to 725 ° C. in the presence of a catalyst selected from the group consisting of: a Fe powder catalyst, a Fe: Cu bimetallic powder catalyst, and a Fe: Ni bimetallic powder catalyst A process comprising reacting. 前記ナノファイバーが、分離した非連続的な実質的なグラファイト・シートを有することを特徴とする請求項１２に記載の方法。   The method of claim 12, wherein the nanofibers have separated, discontinuous, substantial graphite sheets. 前記ナノファイバーが、非円筒形の多面体管状構造を形成する連続的な実質的なグラファイト・シートを有することを特徴とする請求項１２に記載の方法。   13. The method of claim 12, wherein the nanofiber comprises a continuous substantially graphite sheet that forms a non-cylindrical polyhedral tubular structure. 触媒が、Ｆｅ対Ｃｕの比が３：７〜７：３であるＦｅ：Ｃｕバイメタリックである請求項１２に記載の方法。   13. The method of claim 12, wherein the catalyst is Fe: Cu bimetallic with a Fe to Cu ratio of 3: 7 to 7: 3. 触媒が、Ｆｅ対Ｎｉの比が約３：７〜７：３であるＦｅ：Ｎｉバイメタリックである請求項１２に記載の方法。   13. The method of claim 12, wherein the catalyst is Fe: Ni bimetallic with a Fe to Ni ratio of about 3: 7 to 7: 3. ＣＯ対Ｈ2の比が、８０：２０〜２０：８０である請求項１２に記載の方法。 The ratio of CO to H 2 is 80: 20 to 20: 80 The method of claim 12. バイメタリック粉の粒径が、０．２５ナノメートル〜５マイクロメートルである請求項１２に記載の方法。
The method according to claim 12, wherein the particle size of the bimetallic powder is 0.25 nanometer to 5 micrometers.
JP2003512478A 2001-07-10 2002-07-09 Crystalline graphite nanofiber and method for producing the same Pending JP2004534914A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/902,113 US20020054849A1 (en) 2000-09-08 2001-07-10 Crystalline graphite nanofibers and a process for producing same
PCT/US2002/021497 WO2003006726A1 (en) 2001-07-10 2002-07-09 Crystalline graphite nanofibers and a process for producing same

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JP2004076133A Division JP2004277998A (en) 2001-07-10 2004-03-17 Crystalline graphite nanofiber and method for producing the same

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JP2004534914A JP2004534914A (en) 2004-11-18
JP2004534914A5 true JP2004534914A5 (en) 2006-01-05

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EP (1) EP1404907A4 (en)
JP (2) JP2004534914A (en)
CA (1) CA2477198A1 (en)
WO (1) WO2003006726A1 (en)

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JP4330917B2 (en) * 2002-04-17 2009-09-16 Ｊｆｅケミカル株式会社 Method for producing vapor grown carbon fiber
JP4157791B2 (en) * 2003-03-31 2008-10-01 三菱マテリアル株式会社 Method for producing carbon nanofiber
TW200508431A (en) 2003-08-26 2005-03-01 Showa Denko Kk Crimped carbon fiber and production method thereof
US20060122056A1 (en) * 2004-12-02 2006-06-08 Columbian Chemicals Company Process to retain nano-structure of catalyst particles before carbonaceous nano-materials synthesis
JP5974631B2 (en) * 2012-05-23 2016-08-23 株式会社豊田中央研究所 Exhaust gas purification catalyst and method for producing the same
JP2014114205A (en) * 2012-11-14 2014-06-26 Toshiba Corp Carbon material, method for producing the same, and electrochemical cell, oxygen reduction device and refrigerator using the same

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US5618875A (en) * 1990-10-23 1997-04-08 Catalytic Materials Limited High performance carbon filament structures
US5458784A (en) * 1990-10-23 1995-10-17 Catalytic Materials Limited Removal of contaminants from aqueous and gaseous streams using graphic filaments
US6485858B1 (en) * 1999-08-23 2002-11-26 Catalytic Materials Graphite nanofiber catalyst systems for use in fuel cell electrodes

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